28771218

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{389}}^1\times {\mathrm{587}}^1$

素因数の和:991

約数の個数: 48

約数和(自身を含む): 71547840

約数和(自身を除く): 42776622

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 389, 587, 778, 1167, 1174, 1761, 2334, 2723, 3501, 3522, 4109, 5283, 5446, 7002, 8169, 8218, 10566, 12327, 16338, 24507, 24654, 36981, 49014, 73962, 228343, 456686, 685029, 1370058, 1598401, 2055087, 3196802, 4110174, 4795203, 9590406, 14385609, 28771218]

約数ペア:

[(1, 28771218), (2, 14385609), (3, 9590406), (6, 4795203), (7, 4110174), (9, 3196802), (14, 2055087), (18, 1598401), (21, 1370058), (42, 685029), (63, 456686), (126, 228343), (389, 73962), (587, 49014), (778, 36981), (1167, 24654), (1174, 24507), (1761, 16338), (2334, 12327), (2723, 10566), (3501, 8218), (3522, 8169), (4109, 7002), (5283, 5446)]